Planned Parenthood is being pressured to answer questions about how much taxpayer funding it receives and and how that money is spent.

A recent report from the Government Accountability Office revealed Planned Parenthood spent $657 million in federal funds between 2002 and 2008.

Yet, another report showed the pro-abortion organization took in more than $2 billion in grants and programs during the same time period.

Pro-life groups say that more than $1 billion discrepancy needs to be explained by Planned Parenthood.

CBN News spoke with Penny Nance, CEO of Concerned Women for America, about these varying reports and why pro-lifers should be concerned.

Click play for her comments.